FI951124A - Process for decolourising pulp and apparatus for carrying out the process - Google Patents

Process for decolourising pulp and apparatus for carrying out the process Download PDF

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Publication number
FI951124A
FI951124A FI951124A FI951124A FI951124A FI 951124 A FI951124 A FI 951124A FI 951124 A FI951124 A FI 951124A FI 951124 A FI951124 A FI 951124A FI 951124 A FI951124 A FI 951124A
Authority
FI
Finland
Prior art keywords
pulp
outlet
air bubble
decolourising
carrying
Prior art date
Application number
FI951124A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI117561B (en
FI951124A0 (en
Inventor
Alain Serres
Original Assignee
Lamort E & M
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9460964&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FI951124(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Lamort E & M filed Critical Lamort E & M
Publication of FI951124A0 publication Critical patent/FI951124A0/en
Publication of FI951124A publication Critical patent/FI951124A/en
Application granted granted Critical
Publication of FI117561B publication Critical patent/FI117561B/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/14—Flotation machines
    • B03D1/1412—Flotation machines with baffles, e.g. at the wall for redirecting settling solids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/14—Flotation machines
    • B03D1/1443—Feed or discharge mechanisms for flotation tanks
    • B03D1/1475—Flotation tanks having means for discharging the pulp, e.g. as a bleed stream
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
    • D21B1/30—Defibrating by other means
    • D21B1/32—Defibrating by other means of waste paper
    • D21B1/325—Defibrating by other means of waste paper de-inking devices
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
    • D21B1/30—Defibrating by other means
    • D21B1/32—Defibrating by other means of waste paper
    • D21B1/325—Defibrating by other means of waste paper de-inking devices
    • D21B1/327—Defibrating by other means of waste paper de-inking devices using flotation devices
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/66—Pulp catching, de-watering, or recovering; Re-use of pulp-water
    • D21F1/70—Pulp catching, de-watering, or recovering; Re-use of pulp-water by flotation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/14—Flotation machines
    • B03D1/1493—Flotation machines with means for establishing a specified flow pattern
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/14—Flotation machines
    • B03D1/24—Pneumatic
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/64—Paper recycling

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biotechnology (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Degasification And Air Bubble Elimination (AREA)

Abstract

To separate and remove ink from a paper pulp, an air bubble recirculation flow is directed at the pulp against its direction of travel in a circuit, to increase the probability that the air bubbles will collide with ink particles. Also claimed is an appts. with a vertical chamber (1) with one or more outlet channels (M) for the foam at the top. At least one pulp inlet (E) is at the upper zone. At least one recirculation circuit has an outlet opening (S), a circulation pump (P) and one or more injectors. At the lower section of the chamber, an opening gives return of a pulp/air bubble mixture above the outlet for the deinked pulp.
FI951124A 1994-03-11 1995-03-10 Process for decolourising pulp and method for carrying out the procedure FI117561B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9402886 1994-03-11
FR9402886A FR2717192B1 (en) 1994-03-11 1994-03-11 Method for deinking paper pulp and apparatus for carrying out this method.

Publications (3)

Publication Number Publication Date
FI951124A0 FI951124A0 (en) 1995-03-10
FI951124A true FI951124A (en) 1995-09-12
FI117561B FI117561B (en) 2006-11-30

Family

ID=9460964

Family Applications (1)

Application Number Title Priority Date Filing Date
FI951124A FI117561B (en) 1994-03-11 1995-03-10 Process for decolourising pulp and method for carrying out the procedure

Country Status (10)

Country Link
US (2) US5650044A (en)
EP (1) EP0674040B2 (en)
JP (1) JP3819948B2 (en)
AT (1) ATE193568T1 (en)
CA (1) CA2144025C (en)
DE (1) DE69517226T3 (en)
ES (1) ES2150536T5 (en)
FI (1) FI117561B (en)
FR (1) FR2717192B1 (en)
NO (1) NO307575B1 (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6074527A (en) 1994-06-29 2000-06-13 Kimberly-Clark Worldwide, Inc. Production of soft paper products from coarse cellulosic fibers
US6001218A (en) 1994-06-29 1999-12-14 Kimberly-Clark Worldwide, Inc. Production of soft paper products from old newspaper
US5582681A (en) 1994-06-29 1996-12-10 Kimberly-Clark Corporation Production of soft paper products from old newspaper
DE19611864C1 (en) * 1996-03-26 1997-12-11 Voith Sulzer Stoffaufbereitung Flotation process and device for separating solids from a suspension containing paper fibers
US6296736B1 (en) 1997-10-30 2001-10-02 Kimberly-Clark Worldwide, Inc. Process for modifying pulp from recycled newspapers
US5840156A (en) * 1997-04-14 1998-11-24 Beloit Technologies, Inc. Froth flotation process for deinking wastepaper using multiflow pressurized deinking module
US6073774A (en) * 1997-04-14 2000-06-13 Beloit Technologies, Inc. Pressurized deinking module with vent line
US5804061A (en) * 1997-04-14 1998-09-08 Beloit Technologies, Inc. Multiflow pressurized deinking apparatus
IT1293000B1 (en) * 1997-05-30 1999-02-11 Comer Spa PERFECTED REACTOR FOR THE PURIFICATION OF LIQUIDS.
FR2772399B1 (en) * 1997-12-15 2000-02-11 Lamort E & M PROCESS FOR DEINKING PAPER PULP FROM RECYCLED PAPER
US6387210B1 (en) 1998-09-30 2002-05-14 Kimberly-Clark Worldwide, Inc. Method of making sanitary paper product from coarse fibers
DE10047958C2 (en) * 2000-09-27 2002-08-01 Meri Entsorgungstech Papierind A flotation device
AU2003901208A0 (en) * 2003-03-17 2003-04-03 Outokumpu Oyj A flotation device
FR2857032A1 (en) * 2003-05-15 2005-01-07 Kadant Lamort PAPER PULP MILLING METHOD AND FLOTATION CELL USED FOR THIS PROCESS
FR2854907B1 (en) * 2003-05-15 2006-03-24 Kadant Lamort PAPER PULP MILLING METHOD AND FLOTATION CELL USED FOR THIS PROCESS
US7368727B2 (en) * 2003-10-16 2008-05-06 Alis Technology Corporation Atomic level ion source and method of manufacture and operation
FR2963627B1 (en) * 2010-08-05 2012-10-05 Kadant Lamort METHOD OF DISENGAGING, AND INSTALLATION FOR ITS IMPLEMENTATION
FR3012477B1 (en) 2013-10-25 2021-07-02 Kadant Lamort FLOTATION PROCESS, AND INSTALLATION FOR ITS IMPLEMENTATION
EP3280682B1 (en) * 2015-04-08 2023-05-31 FMC Separation Systems, BV Compact floatation unit
FR3037084B1 (en) 2015-06-02 2020-01-10 Coatex METHOD FOR DEINKING RECOVERY PAPER

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2161015A1 (en) * 1971-12-09 1973-06-20 Escher Wyss Gmbh FLOATING DEVICE FOR CLEANING A FIBER SUSPENSION BY FLOTATION IN THE PAPER INDUSTRY
US4186094A (en) * 1976-04-12 1980-01-29 Swemac S.A. Apparatus for eliminating by flotation impurities in the form of solid particles contained in a liquid
DE2712944A1 (en) † 1977-03-24 1978-10-05 Vepa Ag Cutting staple fibres from endless tows - by applying tows to inner periphery of cutting cylinder formed by radial blades and cutting by centrifugal action only
SE405964B (en) * 1977-08-10 1979-01-15 Fransson Arne WATER DEVICE
US4094783A (en) * 1977-09-29 1978-06-13 Jackson George F Centrifugal flotation separator
GB2041788B (en) * 1978-08-21 1982-10-06 Feldmuehle Ag Method and device for cleaning suspension fibres
EP0037513B1 (en) * 1980-04-09 1984-08-08 Feldmühle Aktiengesellschaft Flotation apparatus for deinking fibrous suspensions
US4399028A (en) * 1982-06-14 1983-08-16 The Black Clawson Company Froth flotation apparatus and method
GB8310494D0 (en) * 1983-04-19 1983-05-25 Beloit Walmsley Ltd Deinking
DE3406990A1 (en) * 1984-02-27 1985-08-29 E. & M. Lamort S.A., Vitry-le-François, Marne METHOD AND DEVICE FOR FLOTATING DISPERSIONS
US4721562A (en) * 1984-04-03 1988-01-26 Feldmuele Aktiengesellschaft Aerating apparatus
FR2579638B1 (en) † 1985-03-29 1988-09-02 Lamort E & M APPARATUS FOR INKING PAPER PULP
DE3524071A1 (en) * 1985-07-05 1987-01-15 Erich Ing Grad Kurz Process and device for the flotation of fibre suspensions
US4952308A (en) * 1986-12-10 1990-08-28 Beloit Corporation Pressurized flotation module and method for pressurized foam separation
FR2619023B1 (en) * 1987-08-07 1991-04-12 Lamort E & M PRESSURE MIXER INJECTOR
US5028315A (en) * 1989-12-11 1991-07-02 The Black Clawson Company Froth flotation apparatus and method
AU8428591A (en) * 1990-11-05 1992-05-26 Isp Investments Inc. Hair care compositions including setting shampoo and mousse compositions
US5242585A (en) * 1991-09-04 1993-09-07 Lenox Institute For Research, Inc. Apparatus and method for deinking waste paper pulp
DE4204915C2 (en) * 1992-02-19 1995-09-28 Benckiser Knapsack Ladenburg Process for recycling waste paper
IT1264669B1 (en) * 1993-07-05 1996-10-04 Comer Spa REACTOR FOR THE REMOVAL OF IMPURITIES FROM A LIQUID

Also Published As

Publication number Publication date
ATE193568T1 (en) 2000-06-15
FI117561B (en) 2006-11-30
NO307575B1 (en) 2000-04-25
ES2150536T3 (en) 2000-12-01
EP0674040B1 (en) 2000-05-31
JPH0849181A (en) 1996-02-20
NO950917D0 (en) 1995-03-10
JP3819948B2 (en) 2006-09-13
US5979665A (en) 1999-11-09
US5650044A (en) 1997-07-22
DE69517226D1 (en) 2000-07-06
FR2717192B1 (en) 1996-04-26
CA2144025A1 (en) 1995-09-12
DE69517226T2 (en) 2001-02-01
ES2150536T5 (en) 2006-05-16
DE69517226T3 (en) 2006-07-27
FI951124A0 (en) 1995-03-10
CA2144025C (en) 2007-01-09
EP0674040B2 (en) 2005-10-26
FR2717192A1 (en) 1995-09-15
EP0674040A1 (en) 1995-09-27
NO950917L (en) 1995-09-12

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